Thrust and pull type lock assembly



March 9, 1965 L. H. TUGLE 3,172,281

THRUST AND FULL TYPE LOCK ASSEMBLY Filed Oct. 29, 1962 s Sheets-Sheet 1 O E f 0 INVENTOR [5 64 7/625 March 9, 1965 3 Sheets-Sheet 2 Filed Oct. 29, 1962 INVENTOR, [55/14 706.45

March 9, 1965 H. TUGLE THRUST AND FULL. TYPE LOCK ASSEMBLY 3 Sheets-Sheet 3 Filed Oct. 29, 1962 INVENTOR 55 A! T/GLE United States Patent 3,172,281 TIRUST AND PULL TYPE IAHJK ASSEMBLY 'LeeTugle, 'Represa, Qalif. (2118 Druid Park Drive, Baltimore 1-1, Md.) Filed (Bot. 29, 1962, Ser. No. 233,797 3 Claims. (ill. 79-146) This invention relates generally to an improved door lock assembly adaptable for use in residential, commercial or industrial installations, or used on swinging hinged doors.

A primary object of the present invention is to provide a door lock assembly in which the operating knobs of the assembly are respectively pushed or pulled in order to release a latch bolt, and cooperating components require relatively little physical effort in order to release a latch.

Another object of the present invention is to provide in a novel lock assembly of the character mentioned above, operating knobs in conjunction with cooperating components which require relatively little mechanical effort, and in which'the knobs are moved in a natural direction for entry through a door, is. when entering from the outside of a building, for example, the knob is pushed inwardly and when leaving the building, the opposed control knob is pulled upon.

Other and more specific objects of the invention will become apparent from a consideration of the accompanying description taken in conjunction with the drawing forming a part thereof, wherein:

PEG. 1 is a horizontal plan view with portions broken away and shown in section for purposes of clarity;

FIG. 2 is a fragmentary plan view, similar to portions of FIG. 1, and showing the manner in which one of the door control knobs is operated to actuate the lock assembly bolt;

FIG. 3 is a fragmentary section taken substantially on the plane of line 33 of FIG. 1;

FIG. 4 is a section taken substantially on the plane of line 4-4 of FIG. 1;

FIG. 5 is a section taken substantially on the plane of line 55 of FIG. 1;

FIG. 6 is an elevation of one of the sub-assemblies of the door lock assembly, looking substantially from the plane of line 66 of FIG. 1, with the sub-assembly removed from the door lock assembly for the purposes of showing details;

FIG. 7 is a section taken substantially on the plane of line 7-7 of FIG. 6;

FIG. 8 is an end elevation taken substantially on the plane of line 33 of FIG. 2;

FIG. 9 is an elevation of another of the sub-assemblies of the lock assembly;

FIG. 10 is a section taken substantially on the plane of line iii-10 of FIG. 9;

PEG. ll is a side elevation of one of the elements of the lock assembly shown in FIG. 1;

FIG. 12 is an end elevation looking substantially from the plane of line 12l2 of FIG. 11;

FIG. 13 is a fragmentary section taken substantially on the plane of line 13l3 of FIG. 11; and

FIG. 14 is a section taken substantially on the plane of line 14-14 of FIG. 1.

The various components of the lock assembly may be produced from any suitable material such as brass, bronze, aluminum alloys, steel, plated, etc. The various components may be produced as extrusions, stampings and/or castings wherein relatively little subsequent machining will be required.

First referring to FIG. 1, a fragmentary portion of a door of any suitable material is indicated generally at 1 3,172,281 Patented Mar. 9, 1965 and has extending transversely therethrough a bore 2. Cooperating with the door, at the edge 3 thereof, is a jainb or frame portion 4 incorporating therein a recessed portion 5 having mounted thereover in any suitable manner a latch plate 6. The latch plate, as just mentioned, includes a transverse aperture 7 forreceiving the terminal end of a lock assembly bolt to besubsequently described.

The door 1 has extending through the edge 3 thereof and intersecting the bore 2 a bolt receiving bore 8.

The lock assembly is indicated generally at 10 and comprises a tubular body member or housing 12. The housing 12 has formed in one side thereof an aperture 14 in diametrical opposed relationship to an aperture 16 and has fixed thereto a secondary cam 18 retained thereto by means of a suitable fastening element 29 such as a-rivet or the like. Longitudinally spaced from the secondary cam 18 is a cam guide 22 retained to the housing by means of a suitable fastening element 24 such as a rivet, for example. The secondary cam 18 includes an angular cam or guide surface 26, and has a longitudinally extending inner key portion 28. The cam guide 22 includes on its inner edge a key or guide portion 30.

Extending longitudinally within the housing '12 is a master cam 32 which includes on one inner edge a keyed guide portion 34 complementary to the guide portion 30 of the cam guide 22, and at another inner edge a keyed guide portion 36 complementary to and reciprocably received on the guide portion 23 of the secondary cam 38. The master cam includes an intermediate cut out portion includin an angular cam or guide surface 38 spaced from and extending generally in the same direction as the guide surface 26 on the secondary cam 18. The master cam guide surface 33 (see FIGS. 3, 11-13) has at one side thereof a gear rack portion 40. Indicated generally at 42 is a bolt assembly including a bolt element 44 cooperating with the keeper plate 6 in the usual manner (see FIGS. 1 and 2), and having pivotally connected thereto at 46 a connecting link 48 including a lateral latch or abutment portion 5% The bolt assembly 42 includes an operating a'rm indicated generally at 52 (see FIGS. 13, 6 and 7). The arm 52 comprises a frame 54- including opposed side spaced flanges 56 and 58 and as substantially skeletonized to provide a substantially uninterrupted, through-opening 6d bordered at one end by a transverse connecting lip 62. The lip 62, as clearly seen in FIGS. 1 and 2, will engage beneath the lateral latch or abutment portion 50 of the link 48. As the frame 54 moves from the position shown in FIG. 1 to that of FIG. 2, the bolt element 44 will move to a delatching position (see FIGS. 2 and 1, respec tively).

Pivotally connected to the side flanges 56 and 58 of the frame 54 at the end opposite lip 62 on a transverse pivot pin 64 is a bifurcated lever 66. The .lever 66 has a substantially V-shape as seen in FIG. 7 and includes intermediately thereof on an axle element 68 a guide wheel 70 which engages the guide surface 26 of the secondary cam 18. Journalled on a transverse .pin or axle element 72 on the lever 66 is a gear wheel 74 flanked at one side by an integral guide wheel 76. The flange 56 of the frame 54 has extending laterally therefrom in substantial alignment with the pin 72 an abutment pin 78. The function of the various parts of the arm 52 will subsequently be described in detail. However, it will be noted that the lever 66 is journalled for independent free pivotal movement on the pin 64, i.e. with respect to the frame 54. Thus, the frame 54 may have the reciprocable movement illustrated in FIGS. 1 and 2 while the lever 66 has relative pivotal movement with respect to the frame 54. It will be noted that the gear wheel 74 will engage the gear rack teeth 46 of the 1nas e r a ter cam 32, and the guide wheel 76 flanking the gear Wheel will ride on the cam guide surface 38 of the master cam 32.

It will be noted that the intermediate portion of the master cam 32 extends transversely through the opening 60 of the frame 54 of arm 52, and as will subsequently be described in detail with respect to the operation of the lock assembly, the master cam will have relatively longitudinal movement with respect to the path of travel of the arm 52 as the lock assembly is being operated. The sleeve or housing member 12 is retained in the bore 2 of the door 1 by means of suitable opposed mounting plates 80 which have inner annular flanges 82 conforming to the outer surface of the housing member 12 and outer annular flanges 84 conforming to the diameter of the bore 2. The flanges 82 incorporate suitable slots 86 for receiving the heads of the respective fastening elements 20, 24 therein. The mounting plates 80 are retained in assembled relationship by means of bolt elements 88, for example. Escutcheon plates 90 are snapped in overlying relationship with respect to the mounting plates 80.

Reciprocably mounted on end 2 of housing member 12, i.e. normally inside the building, is an actuator or knob 94 which is normally pulled upon to open the door 1. Itwill be observed that this is a natural move ment one would assume when opening a door. The knob 94 has connected thereto a lever or latch element 06 which includes a depending nose or abutment portion 98 engageable over a lateral abutment lip 100 formed at one end of the master cam 32.

Reciprocably supported in a central aperture 102 of the actuator or knob 94 is a button element 104 spring urged outwardly by a coil spring 106. The button 104 has fixed thereto an elongated lever 108 which extends longitudinally of the housing member 12 at one side of the arm 52 as seen in FIG. 3, for example. The arm 108 includes a lock notch 110 and a camming notch 112. When the door is unlocked, i.e. the button 104 is not pushed into the actuator knob 94, the pin 78 of the arm 52 will be disposed in the cam notch 112. However, when it is desired to lock the lock assembly, the button 104 is depressed or moved inwardly into the housing member 12, at which time the lock notch 110 engages the pin 78 and the pin will remain in the notch 110. The terminal end 114 of the rod 108 (see FIG. 1) will abut an element 116 on the normally outside actuator or knob 118. Thus it is possible, by depressing the button 104 in the manner shown in the phantom lines in FIG. 1,

to engage the pin 78 of the arm 52 and prevent the lock assembly from operating, i.e. in other words the bolt can be locked from the inside of the building or the like.

The housing member 12 has reciprocably mounted on the end 120, the actuator 118, which incorporates in a suitable aperture portion 122, a key-operated lock assembly 124 of. any suitable character. The lock assembly 124 includes a central shaft 126 having a lateral latch bar 128 terminally alignable with lock ears 130 which normally prevent inward movement of the knob or actuator 118, however, inward movement is permitted upon operation of actuator 118 i.e. movement of the actuator 118 toward the left as viewed in FIGS. 1 and 2, when the lock assembly 124 is rotated. The shaft 126 incorporates in radially extending relationship therefrom the previously mentioned abutment element 116 which includes a terminal end 115 alignable with terminal end 114 of the previously mentioned rod 108. Thus when the shaft 126 is rotated in the usual manner by the insertion of the key, the key will cause the shaft 126 to rotate a sufficient extent to cause the terminal ends of bar 128 to move through the notches 131, i.e. from behind ears 130 (see FIG. 4) and thus permit inward movement of the actuator 118. The shaft 126 includes a reduced terminal end portion 127 received within a con- 4 forming recess 132 (see FIGS. 1, 11 and 12) formed on the end of the master cam.

Operation of the lock assembly Referring to FIG. 1, the lock assembly is in the normal door-closing condition. When it is desired to open the door from the outside, i.e. moving the actuator 118 toward the left as indicated by the direction arrow in FIG. 2, and assuming the lock assembly 124 is in a locked condition, one inserts the key in the lock assembly 124 and rotates the tumblers in the conventional manner, and thereafter applies longitudinal pressure on the master cam 32. Inward movement of the cam assembly from the position shown in FIG. 1 to that of FIG. 2 causes a resultant or component of forces to react upon the arm 52, i.e. the secondary cam 18 with the in clined cam surface 26 reacts against the wheel while the gear wheel 74 moves along the gear teeth 40 of inclined cam surface 38. This movement causes the arm 52 to move into a recess 134 formed in communicating relationship with the bore 2 of the door 1, accordingly withdrawing the bolt 44 from the keeper plate 6. It will be noted that the inward or leftward movement of the actuator 118 is a natural movement that one would utilize in order to open a door, i.e. he pushes it inward 1y. It will be noted that the bolt assembly 42 includes a bolt return spring 136 which returns the bolt element 44 to a locking position and returns the parts to the normal condition, i.e. that of FIG. 1.

In order to open the door from the inside of a building, the actuator or knob 94 is pulled in a leftward direction, resulting in movement of the lever 96, which is engaged on the abutment lip of the master cam, toward the left, this causing the previously mentioned imposing of the resultant forces on the arm 52 accordingly to withdraw the bolt element 44 from the keeper plate aperture 7.

The lock assembly may be locked from the inside of the building, by depressing the button 104 to the phantom line position shown in FIG. 1, wherein the pin 78 of the arm 52 engages in the lock notch of the arm 108, and opening of the door from the outside is prevented by the abutment element 116 until the look assembly 124 is operated by a suitable key. When the pin 78 is in the notch 110 and the end 114 of rod 108 engages the end of abutment element 116, inward movement of knob 118 is prevented. However, the knob 94 can be pulled toward the left as seen in FIG. 1, i.e. to cause master cam 32 to move to the left and function as previously described.

It will be obvious to those skilled in the art that various changes may be made without departing from the scope of the invention and therefore the invention is not limited to what is shown in the drawings, and described in the specification, but only as indicated in the appended claims.

I claim:

1. A lock assembly for disposition transversely of a door panel or the like in which a bolt assembly will project from the edge of said panel, comprising:

a tubular housing;

a bolt assembly connected to said tubular housing and disposed normal to said housing and including an arm connected to said housing for moving transversely thereof;

said arm including a lever pivotally supported on a transverse pivot on said tube;

said lever including an abutment journalled on an intermediate portion of said lever on an axis parallel to the pivot of said lever;

a gear element journalled on the lever on an axis below said abutment;

a master cam supported for longitudinal movement in 7 said tubular housing;

said master cam including teeth spaced therealong and meshingly engaged with said gear wheel; a secondary cam fixedly secured in said tubular housing and including an inclined surface opposed to said inclined surface of said master cam;

said abutment on said lever engaging said inclined surface of said secondary cam and movable therealong for causing transverse movement of said bol-t assembly with respect to said tubular housing; a first knob assembly mounted for linear movement on one end of said tubular housing and including means engaging said master cam for moving the inclined surface thereof toward the inclined surface of said secondary cam to cause transverse movement of said bolt assembly with respect to said tubular housing; and a second knob assembly mounted for linear movement on the other end of said tubular housing;

said second knob assembly including means engaged with said master cam for pulling said master cam inclined surface toward the opposed inclined surface of said secondary cam to cause said transverse movement of said bolt assembly with respect to said tubular housing.

2. The lock assembly as claimed in claim 1 in which said second knob assembly has reciprocably supported thereon a spring urged latch comprising an elongated rodlike element having a notch portion opening in one side thereof;

said arm including a laterally projecting pin engageable in said notch portion for preventing linear movement of said knobs and maintaining said bolt assembly in a latching condition.

3. The lock assembly as calirned in claim 2 in which said first knob assembly includes a key-operated lock mounted therein for preventing movement of said knob assembly and corresponding movement of said master cam.

References Cited by the Examiner UNITED STATES PATENTS 141,714 8/73 Heyse 292170 840,873 1/07 Sparks 418 1,087,193 2/14 Skinner 292- X M. HENSON WOOD, JR., Primary Examiner. 

1. A LOCK ASSEMBLY FOR DISPOSITION TRANSVERSELY OF A DOOR PANEL OR THE LIKE IN WHICH A BOLT ASSEMBLY WILL PROJECT FROM THE EDGE OF SAID PANEL, COMPRISING: A TUBULAR HOUSING; A BOLT ASSEMBLY CONNECTED TO SAID TUBULAR HOUSING AND DISPOSED NORMAL TO SAID HOUSING AND INCLUDING AN ARM CONNECTED TO SAID HOUSING FORMOVING TRANSVERSELY THEREOF; SAID ARM INCLUDING A LEVER PIVOTALLY SUPPORTED ON A TRANSVERSE PIVOT ON SAID TUBE; SAID LEVER INCLUDING AN ABUTMENT JOURNALLED ON AN INTERMEDIATE PORTION OF SAID LEVER ON AN AXIS PARALLEL TO THE PIVOT OF SAID LEVER; A GEAR ELEMENT JOURNALLED ON THE LEVER ON AN AXIS BELOW SAID ABUTMENT; A MASTER CAM SUPPORTED FOR LONGITUDINAL MOVEMENT IN SAID TUBULAR HOUSING; SAID MASTER CAM INCLUDING TEETH SPACED THEREALONG AND MESHINGLY ENGAGED WITH SAID GEAR WHEEL; 